Once again, temperatures of more than 30° C are forecast for Vienna for the coming weekend – and in the coming weeks the mercury is set to rise to over 35° C. And so the tropical summer continues. Environmental medicine expert Hans-Peter Hutter of the Institute of Environmental Health at MedUni Vienna points out that, in 30 years time, high temperatures and prolonged hot spells, such as we are experiencing this summer, will be the norm: "In future Austria will have even more hot spells with even higher temperatures."